*{margin:0;padding:0;}
*{box-sizing: border-box;}

.window{
  width: 400px;
  height: 300px;
  margin: 20px auto;
  overflow: hidden;
}
.images{
  position: relative;
}
.images > img{
  width: 100%;
  transition: all 1500ms;
  position: absolute;
  top: 0;
}

.images > img.current{
  left: 0;
  transform: translateX(0);
  z-index: 1;
}
.images > img.leave{
  transform: translateX(-100%);
  z-index: 1;
}
.images > img.enter{
  transform: translateX(100%);
}
